20577355012353 has 16 divisors (see below), whose sum is σ = 27802857270656. Its totient is φ = 13536006353280.

The previous prime is 20577355012339. The next prime is 20577355012381. The reversal of 20577355012353 is 35321055377502.

It is not a de Polignac number, because 20577355012353 - 2⁴ = 20577355012337 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20577355014353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120119068 + ... + 120290253.

It is an arithmetic number, because the mean of its divisors is an integer number (1737678579416).

Almost surely, 2^{20577355012353} is an apocalyptic number.

It is an amenable number.

20577355012353 is a deficient number, since it is larger than the sum of its proper divisors (7225502258303).

20577355012353 is a wasteful number, since it uses less digits than its factorization.

20577355012353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240409704.

The product of its (nonzero) digits is 3307500, while the sum is 48.

The spelling of 20577355012353 in words is "twenty trillion, five hundred seventy-seven billion, three hundred fifty-five million, twelve thousand, three hundred fifty-three".